Gabriel Rinkel is considered a world leading authority on subarachnoid haemorrhage and intracranial aneurysms. On this topic he has published more than 400 papers in international peer reviewed journals and has given lectures at more than 30 universities in 4 continents. He gives invited lectures and organises symposia at international conferences such as the World Congress of Neurology, the European Neurological Society, the World Stroke Congress, the International Stroke Congress, the European Stroke Organisation Congress, and he is a regular teacher at the European Stroke Organisation and European Association of Neurological Surgeons. He has written invited reviews for journals as the Lancet, Brain, and Stroke. He was principal investigator of the Magnesium in Aneurysmal Subarachnoid Haemorrhage trial, an international investigator driven trial that is up to now the largest drug trial ever performed in patients with subarachnoid haemorrhage.